guide de ch_oview: orthography and processor architecture update

20140914
Guide de oview: continue architecture update
Guide C oview: update processor architecture

"backport" from de
Guide de ch_basics: several corrections

20140914
Guide de ch_accts: Several minor corrections

20140914
Add warning and tip about account separator character
replace exclamation mark from previous commit
Guide C txns: Add a warning about dummy transactions and auditors
Guide C txns: Thinking is not enough for the cleared state of an
transaction
Guide C txns: explain reconcilation state "cleared"

Improved wordening by lmat
Update modification dates
Guide de ch_txns: several improvements, txns-sxn1 complete

20140914
Review of last commit

Related changes to C guide are integrated
Guide C txns: Upgrade note to warning

"It is important to understand that reconciliation..."